Poland Crash Probe Focuses on Human Error

Officials Rule Out Technical Failure as Cause for Jet Disaster That Killed Polish President and Dozens of Top Officials

By

Marc Champion And

Marcin Sobczyk

Updated April 13, 2010 12:01 a.m. ET

WARSAW—Poland's chief prosecutor said an initial examination of black boxes from the aircraft that crashed over the weekend, killing the Polish president and dozens of the country's top officials, showed no evidence that passengers instructed the pilots to land.

The remarks by Poland's Prosecutor General Andrzej Seremet at a news conference Monday countered widespread speculation in Poland and Russia that Polish President Lech...